//
//  UserAccount.swift
//  SinaWeibo
//
//  Created by mac on 15/8/9.
//  Copyright © 2015年 mac. All rights reserved.
//

import UIKit

class UserAccount: NSObject,NSCoding {
//    用于调用access_token，接口获取授权后的access token。
    var access_token:String?
//    access_token的生命周期，单位是秒数。
    var expires_in: NSTimeInterval = 0{
        didSet {
            expiresDate = NSDate(timeIntervalSinceNow: expires_in)
        }
    }
//    过期日期
    var expiresDate: NSDate?
//    当前授权用户的UID。
    var uid: String?
//    用户头像地址（大图），180×180像素
    var avatar_large: String?
//    友好显示名称
    var name: String?
    
    init(dict: [String: AnyObject]) {
        super.init()
        
      setValuesForKeysWithDictionary(dict)
        
    }
    
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {}
    
    override var description: String {
        let properties = ["access_token", "expires_in", "uid" , "expiresDate" , "name" , "avatar_large"]
        
        return "\(dictionaryWithValuesForKeys(properties))"
    }
//    MARK:---- 加载用户信息
    func loadUserInfo(finished:(error:NSError?)->()) {
        NetworkTools.shareTools.loadUserInfo(uid!) { (result, error) -> () in
            
            if error != nil {
                finished(error: error)
                return
            }
//            设置用户信息
            self.name = result!["name"] as? String
            self.avatar_large = result!["avatar_large"] as? String
//            保存用户信息
            self.saveAccount()
//            完成回调
            finished(error: nil)
            
        }
        
    }
    
    
    
//    MARK:   归档--接档的方法
    private static let accountPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true).last!.stringByAppendingPathComponent("account.plist")
    
//    保存用户账号
    /// 保存账号
    func saveAccount() {
        NSKeyedArchiver.archiveRootObject(self, toFile: UserAccount.accountPath)
        
    }
//    静态的用户账户属性
   private static var userAccount: UserAccount?
    
    class func loadAccount() -> UserAccount? {
        if userAccount == nil{
            userAccount = NSKeyedUnarchiver.unarchiveObjectWithFile(accountPath) as? UserAccount
        }
        if let date = userAccount?.expiresDate where date.compare(NSDate()) == NSComparisonResult.OrderedAscending{
        userAccount = nil
        }
        return userAccount
    }
//    MARK:  NSCoding
    /// 归档--保存--将自定义对象以二进制数据保存到磁盘
    func encodeWithCoder(aCoder: NSCoder) {
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeDouble(expires_in, forKey: "expires_in")
        aCoder.encodeObject(expiresDate, forKey: "expiresDate")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(name, forKey: "name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
    }
    /// 解档--恢复--将二进制数据从磁盘恢复到自定义对象
    required init?(coder aDecoder: NSCoder) {
        access_token = aDecoder.decodeObjectForKey("access_token") as? String
        expires_in = aDecoder.decodeDoubleForKey("expires_in")
        expiresDate = aDecoder.decodeObjectForKey("expiresDate") as? NSDate
        uid = aDecoder.decodeObjectForKey("uid") as? String
        name = aDecoder.decodeObjectForKey("name") as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large") as? String
        
    }
    
    

}
